• Tonight

    Sep 1

    Lo 67°

    Mainly clear, warm; fog late

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Wed

    Sep 2

    90°Lo 69°

    Fog in the a.m.; partly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Thu

    Sep 3

    91°Lo 69°

    Sun, some clouds; hot, humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Sep 4

    82°Lo 59°

    Partly sunny and not as hot

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Sep 5

    80°Lo 55°

    Plenty of sunshine

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Tue
6am
7am 8am 9am 10am 11am 12pm 1pm
  6am 7am 8am 9am 10am 11am 12pm 1pm
Forecast
Mostly Clear
Sunny
Sunny
Partly Sunny
Mostly Sunny
Mostly Sunny
Partly Cloudy
Partly Cloudy
Temp (°F) 68° 71° 73° 76° 80° 83° 86° 87°
RealFeel® 69° 74° 76° 82° 87° 91° 93° 93°
Humidity 89% 88% 83% 76% 65% 59% 55% 50%
   
  6am 7am 8am 9am 10am 11am 12pm 1pm
Rain
 
1%
 
1%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
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  6am 7am 8am 9am 10am 11am 12pm 1pm
Wind (mph) 2 N 2 N 5 N 4 NNW 5 NNE 6 NNE 6 N 6 NNW
UV Index 0 0 1 2 3 5 5 5
Cloud Cover 25% 4% 0% 40% 18% 24% 58% 71%
Dew Point 64° 67° 67° 68° 67° 67° 68° 66°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Sep 1

more Historical Weather Data >
  Today Normal Record 9/1/2014
High 90° 81° 97° (2010) 87°
Low 67° 62° 50° (1986) 72°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:26 AM with 13:05 of sunlight, then sets at 7:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:26 PM with 13:30 of moolight, then sets at 10:56 AM

Princeton Weather Report

Philadelphia: July-like Heat to Continue Through Labor Day

September 1, 2015; 5:32 PM ET

The vast majority of the time through the Labor Day weekend will feature sunshine with unseasonably hot afternoons around Philadelphia. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps